Springfield Marine | Bushing for 2-7/8" Seat Mount Swivel (2171001)

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Do you have a Springfield Marine Trac-Lock II swivel seat mount? Has your boat seat become floppy, unstable, or lopsided after years of wear and tear?

Before you spend your hard-earned money on a new seat mounting system, try this replacement bushing.

Simply install this Springfield Marine 2-7/8" bushing to form a tighter bond between your swivel and post.

Not only will you enjoy a smoother ride, but you'll also save yourself a lot of money!


  • Springfield Marine Replacement / Service Part for lost or worn bushing

  • Easy installation

  • Maintains a tight fit for a securely mounted boat seat


  • Diameter: 2-7/8" (2.875 Inches)

  • Length: 3-9/16" (3.563 Inches)


To help confirm whether this bushing is the correct replacement for your current setup, look for the following identifications that may be stamped on your current bushing:

  • Manufacturing Number - 9010018
  • Casting Number - D3725

The 2-7/8" replacement bushing will not work for bushings stamped with the following identifications (you'll need the 2-3/8" replacement bushing instead):

  • Manufacturing Number - 9010050
  • Casting Number - D4022

Also Available in 2-3/8" Diameter

Springfield Marine | Trac-Lock II Series | Bushing for Swivel Seat Mount | Fits 2-3/8" diam. (2171000) 



Extra Information

Springfield Marine

1 Reviews

  • Posted by Mike on 10th Jul 2021


    Seat pedestal bushing

    Exactly what I needed. They must have a distribution center right at the end of my street!!!! Very fast shipping. I've read a couple reviews about the poor casting of theses parts because it's thicker on one side and looks off center. It's actually made that way so you can install the thicker side forward or aft to give the seat a 3 to 4 degree tilt. This part is well made and just like it's supposed to be.